She can type 4500 in 1 hour and 75 in a minute .
Answer:
I think this is the correct answer
X = 11/3 this answer is finding x in this problem
Answer: 
Step-by-step explanation:
Given
Rami practices his saxophone for
hour on 4 day each week
So, for a week she practices around

Converting it into mixed fraction

The correct question in the attached figure
we know that
to fill the tank is required--------> 100%-20%--------> 80%
if 20% of the gas tank is-----------------> 288.75 gal
80% --------------------------------------> X gal
X=80*288.75/20--------> X=1155 gal
if 1 gal----------------> cost $3
1155 gal----------> $X
X=1155*3--------> X=$3465
the answer is
the cost to fill the tank is $3465